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snow_tiger [21]
2 years ago
14

The first law of thermodynamics is observed when

Chemistry
1 answer:
krek1111 [17]2 years ago
8 0

Answer:

Explanation:

The first law of Thermodynamics is known as Conservation because it explains that energy is always maintained within a closed system and cannot be created or destroyed. Therefore, this is observed when there is no longer change in temperature in a system. Mainly because the energy is not being transferred to and from another system. Without this transfer of energy, the energy itself gets conserved within the system and the temperature no longer fluctuates.

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The correct answer is B.

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Propose a mechanism for the following reaction.
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3 years ago
While exploring a coal mine, scientists found plant fossils in the ceiling of the mine which had been preserved by an earthquake
ale4655 [162]

Answer:

11552.45 years

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Half life = 5730 years

t_{1/2}=\frac{\ln2}{k}

Where, k is rate constant

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k=\frac{\ln2}{t_{1/2}}

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Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

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Final concentration [A_t] = 40.0 counts/min

Time = ?

Applying in the above equation, we get that:-

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Answer:

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